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Dendroclimatic regions of Douglas fir Pseudotsuga menziesii (Mirb.) Franco in western and northern Poland

100%

Feliksik E., Wilczynski S.

Dendrobiology

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2004

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tom 52

9-15

This study concerned 26 forest stands with Douglas fir situated in Lower Silesia, Great Poland, Pomerania, Warmia and Masuria. Each stand was represented by 24 trees. From each tree an increment core was taken by Pressler’s borer. The principal components analysis showed that the first three principal components accounted for 73% of the variation of chronologies in total. The first principal component was the most convergent with the mean air temperature curve for January–March, the second with the total precipitation for June–August, and the third with the mean temperature for June–August. The first principal component always integrated the chronologies and decided on a similar rhythm of changes in the tree-ring widths. The annual variation of tree-ring widths was also affected by precipitation in summer (June–August), but this differentiated the chronologies. This was reflected by the dispersion of chronologies in respect to the eigenvectors of the second principal component. The third principal component also differentiated the chronologies. Separate groups were formed by the most eastern and the most western localities of the territory under investigations. Thus the Douglas fir growth reactions were mainly affected by the thermal and pluvial conditions of summer and, to a lesser, degree by the thermal conditions of winter. On the basis of these results it was possible to distinguish the dendroclimatically homogeneous regions in western and northern Poland.

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Different growth patterns of Picea schrenkiana subsp. tianshanica (Rupr.) Bykov and Juglans regia L. coexisting under the same ecological conditions in the Sary-Chelek Biosphere Reserve in Kyrgyzstan

84%

Magnuszewski M., Bijak S., Orozumbekow A., Howe B., Musuraliev K., Zasada M., Bronisz K., Bronisz A.

Dendrobiology

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2015

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tom 73

The main aim of the study was to compare the radial growth of Persian walnut and Schrenk spruce trees growing under the same ecological conditions in the Sary-Chelek range of the Tien-Shan Mountains, as well as to analyse the response of these species to the selected climate factors in line with the altitude gradient. Four study plots were established at the altitude of 1350, 1400, 1450 and 1500 m a.s.l. Results indicated that (1) walnut and spruce in the Sary-Chelek Biosphere Reserve have different patterns of radial increment and reaction to climate factors, despite growing in the same habitat, (2) spruce radial growth responded to low precipitation and low temperature during the April to September period of the previous year; (3) walnut radial increment patterns varied significantly with changes in altitude, whereas spruce patterns did not; and (4) walnut radial increment patterns responded positively to high temperature during contemporary growing season and to precipitation during the prior growing season. In addition, it was noted that precipitation during the contemporary growing season could negatively influence growth.

67%

Feliksik E., Wilczynski S.

Zeszyty Naukowe Akademii Rolniczej w Krakowie. Leśnictwo

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2000

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tom 29

Ograniczanie wyników

3 Electronic Journal of Polish Agricultural Universities. Series: Forestry

2 Dendrobiology

1 Electronic Journal of Polish Agricultural Universities. Series: Horticulture

1 Folia Forestalia Polonica. Series A . Forestry

1 Zeszyty Naukowe Akademii Rolniczej w Krakowie. Leśnictwo

6 Wilczynski S.

4 Feliksik E.

2 Podlaski R.

1 Bijak S.

1 Bronisz A.

1 Bronisz K.

1 Howe B.

1 Magnuszewski M.

1 Musuraliev K.

1 Orozumbekow A.

1 Orzel S.

1 Szewczyk J.

1 Szwagrzyk J.

1 Zasada M.

1 2015

3 2007

1 2004

1 2003

1 2002

1 2000

Dendroclimatic regions of Douglas fir Pseudotsuga menziesii (Mirb.) Franco in western and northern Poland

Different growth patterns of Picea schrenkiana subsp. tianshanica (Rupr.) Bykov and Juglans regia L. coexisting under the same ecological conditions in the Sary-Chelek Biosphere Reserve in Kyrgyzstan

Growth patterns of Scots pine in various habitat conditions in the Niepolomice Forest

Dendrometric and dendroclimatological analyses of black locust

Dendroecological characterization of douglas fir (Pseudotsuga menziesii Franco) in the Wielkopolska Region

Heat as a factor determining the activity of cambium in black alder [Alnus glutinosa [L.] Gaertn.] on moist sites

Air temperature, precipitation, and sunshine - the factors deciding on the activity of cucumbertree [Magnolia acuminata L.] vascular cambium

Climatic impact on the radial increment of Norway spruce [Picea abies [L.] Karst.] from the Ustron Forest District